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Warning: mysqli_set_charset() expects parameter 1 to be mysqli, bool given in /www/wwwroot/nihaowua.demon.ren/data.php on line 9

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Fatal error: Uncaught Error: Call to a member function close() on bool in /www/wwwroot/nihaowua.demon.ren/index.php:48 Stack trace: #0 {main} thrown in /www/wwwroot/nihaowua.demon.ren/index.php on line 48